Spring-gear for vehicles.



No. 68!,543. Patented Au 27, mm.

W. B. GRIFFIN. SPRING GEAR FOR VEHICLES.

(Application filed Feb. 28, 1901.)

(No Model.)

anoeul oz Q vitmzaaeo F I UNITED STATES PATENT OFFICE.

WILLIAM B. GRIFFIN, OF GLEN S FALLS, NEW YORK.

SPRING-GEAR FOR VEHICLES.

SPECIFICATION forming part of Letters Patent N 0. 681,543, dated August27, 1901.

Application filed February 28, 1901. Serial No. 49,303. (No model.)

.To all whom it may concern.-

Be it known that I, WILLIAM B. GRIFFIN, a citizen of the United States,residing at Glens Falls, in the county of Warren and State of New York,have invented certain new and useful Improvements in Vehicles; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

The invention relates to vehicles of the buckboard-"gear type.

Heretofore it has been the common practice to attach the spring-boardsdirect to the rear axle by bolts or other equivalent fastening means.This has been found to be objectionable,as the noises are transmittedfrom the axles to the boards, which act as sounding-boards and greatlyincrease the noise and render buckboard-gears objectionable for thisreason. To overcome this objection, strips or blocks of leather orrubber have been interposed between the ends of the boards and the axle;but these strips or blocks soon become hardened by constant use and inthe course of time form practically as good a conductor of sound as theboards themselves.

It is the object of the present invention to connect the rear ends ofthe boards to the rear axle in such manner as to reduce to a minimum thetransmission of sound through the boards; and to that end my inventionprimarily consists in the provision of a stock or head block whose endsare separated from the axle by an intervening space, so that all noisesproduced by the runningear will be reduced to a minimum.

In the accompanying drawings, Figure l is a perspective view of the rearaxle, the metal side springs, and the spring-boards, illustrating myinvention. Fig. 2 is a vertical longitudinal sectional View.

Referring to the drawings, 1 denotes the rear axle of a vehicle, 2 themetal springs,

and 3 the spring-boards. These elements may be of any well-known orapproved construction and in themselves form no part of the presentinvention.

4 denotes a stock or head block bolted or otherwise secured at a pointintermediate its ends, as indicated at 5, to the axle 1 and hav-' ingits laterally-projecting ends spaced from and free from contact with theaxle. To these spaced-apart ends are bolted or otherwise secured theboards 3 and the springs 2, and by this construction and arrangement ofparts it will be apparent that the transmission of sound from the axleto and through said parts, as well as from the metal springs, will bereduced to a minimum.

From the foregoing description,.taken in connection with theaccompanying drawings, the construction and mode of operation of myinvention will be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and minor details ofconstruction may be made within the scope of the invention withoutdeparting from the spirit or sacrificing any of the advantages thereof.

Having thus described my invention, what I claim, and desire to secureby Letters Patcut, is

The combination with the rear axle of a vehicle, of a stock or headblock secured at a point intermediate its ends to said axle and havingits ends located in a plane above the axle and free from contact withthe axle, and spring-boards and metalside springs secured to said ends,substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit= nesses.

WILLIAM B.- GRIFFIN.

Witnesses:

MICHAEL L. BoYL-E, FRED H. THOMPSON.

